Delafield City is a city in Waukesha County, Wisconsin, home to about 7,202 people across 9.4 square miles. Its ZIP code is 53018, and parts of 53029 and 53058 are in Delafield City too.
Homes sold for a median of $284 per square foot in the three months ending August 2026, a balanced market.
Mostly Delafield City; also Delafield Town
Mostly Hartland; part is in Delafield City
Mostly Nashotah; part is in Delafield City
Each card is that ZIP code’s whole market, including any part outside Delafield City. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Delafield City’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | General Mitchell International Airport (MKE)26 miles away |
|---|---|
| Nearest city of 250,000+ | Milwaukee, WI21 miles away |
| Nearest city of 1 million+ | Chicago, IL93 miles away |
Straight-line distances from the center of Delafield City; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Delafield City had 7,185 residents in the 2020 census, up 11% since 2000.
It’s the 146th largest of 1,889 towns in Wisconsin by population.
Waukesha County grew from 35,229 residents in 1900 to 406,978 in 2020.
Waukesha County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 11°F. About 36.9 inches of rain and melted snow fall in a typical year, with about 40 inches of snow.
Source: NOAA 1991–2020 climate normals, Oconomowoc Wwtp, WI weather station (6 miles away).
246,232 jobs at 12,761 businesses in Waukesha County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
113 doctors and other health care providers list an office in Delafield City.
Nearest hospitals
Providers with an office here
| Primary care doctors | 12 |
|---|---|
| Specialist doctors | 6 |
| Dentists | 13 |
| Nurse practitioners and physician assistants | 12 |
| Mental health providers | 41 |
| Physical and occupational therapists | 12 |
| Optometrists | 1 |
| Chiropractors | 16 |
| Pharmacies | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (12 nearby)
Grocery stores (5 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Theaters and performance venues
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1837.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Kettle Moraine School District. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Cushing ElementaryDelafield | Pre-K–5 | 281 | Public | 1.9 mi |
| Kettle Moraine 4KDelafield | Pre-K | 53 | Public | 1.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Hartland, Merton Town, Lisbon, Merton Village, Delafield Town, Nashotah and Chenequa.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.